This post comes from guest community contributor and Engine Yard alumni Andre Arko. Andre has been building web applications with Ruby and Rails for five years, and is a member of the Bundler core team. He works for Plex, tweets as @indirect, and blogs at andre.arko.net. Gem plugins in Rails 3.0 Rails 3.0 is finally released, and with it comes a fantastic new way to extend Rails: Railties. Railtie
![Extending Rails 3 with Railties](https://cdn-ak-scissors.b.st-hatena.com/image/square/43d9e0e614cdd962c1867ff396e98de2480cb446/height=288;version=1;width=512/https%3A%2F%2Fwww.engineyard.com%2Fwp-content%2Fuploads%2F2022%2F02%2Fsupport-panda-headline.png)